Wireless power source



FIG. 1 is a front perspective view of a wireless power source showing my new design;

FIG. 2 is a side perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a front elevation view thereof; and,

FIG. 8 is a back elevation view thereof.

Broken lines showing portions of the wireless power source are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a wireless power source, as shown and described. 